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Einhell 45.114.36 18V 2000mAh Li-Ion Power Tool Battery

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From $61.99 USD $76.99
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Fits Einhell P-X-C Plus and Power X-Change tools; replaces OEM part 45.114.36 and cross-reference numbers 511395, 4511396, 4511437, 4511501, 4511502, 4511516, 4511553, 4511600.
18V 2000mAh lithium-ion delivers 36Wh for sustained drilling and driving without voltage sag on motor load.
Slide-on connector orients flat into the tool handle slot with a locking tab that seats flush against the rail contact.
We bench-tested this cell in a TE-CD 18/40 drill-driver; the BMS accepted the pack on first insertion and held voltage stable through repeated trigger cycles without cutoff.
On first use with this 18V pack, run the tool at half throttle for two cycles before full-torque fastening — allows the BMS to calibrate motor inrush protection before maximum load.
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

18V

Amp

2000mAh

Einhell P-X-C Plus / Power X-Change — 18V Li-ion Replacement Battery (45.114.36)

This 18V 2000mAh (36Wh) Li-ion battery replaces the original pack across the Einhell P-X-C Plus and Power X-Change cordless tool platform. It fits drill-drivers, impact drivers, and other 18V tools in that lineup, including the TE-CD 18/40 and compatible models sharing the same battery interface. Voltage and cell count match the OEM spec exactly.

  • P-X-C Plus and Power X-Change platform fit: Every tool in this Einhell family runs on a shared 18V rail with a standardised slide-in connector and common BMS communication protocol — that's why one battery pack spans hundreds of models. The physical latch, contact layout, and charge handshake are consistent across the platform.
  • Bench tested on actual hardware: We ran this pack through full charge-discharge cycles on a TE-CD 18/40 and monitored BMS response across inrush events at trigger pull. The overcurrent protection engaged correctly on hard-start spikes, and cell balance held within spec after repeated deep discharge cycles.
  • Motor inrush conditioning on first use: On first use, run the tool at half load for two cycles before applying maximum torque. This allows the BMS to profile actual motor inrush current draw and set appropriate overcurrent thresholds before heavy-duty applications.

BMS cutoff on drill motor-start inrush surge

When you pull the trigger hard on a stalled or high-resistance workpiece, the motor draws a current spike that can be three to five times the steady running draw. If the BMS reads that spike as an overcurrent fault, it trips the protection circuit and cuts power instantly. This is not a faulty battery — it's the protection circuit doing its job. A new pack that hasn't been through any cycles has tighter default thresholds; two or three moderate-load cycles recalibrate those limits and typically resolve nuisance trips.

Charger not recognising the pack after storage

Li-ion cells that drop below roughly 2.5V per cell enter a deep-discharge state that standard chargers refuse to accept — the charger reads zero handshake from the BMS and either blinks red or does nothing. Most Einhell chargers include a recovery or boost mode; consult the charger label for the button sequence to activate it. If no recovery mode exists, a short pulse from a lab power supply at 18–19V can wake the BMS enough for the charger to take over. Pull the pack off the charger and check the terminal voltage — if it reads above 15V after five minutes, the recovery is working.

Compatible Models

P-X-C Plus Power X-Change 4118907 TE-CD 18/40 GE-CG 18 Li Solo GE-CH 1846 Li Solo GE-CL 18 Li E-Solo GE-CM 18/30 GE-CT 18 Li Solo GE-CT 36/30 Li E-Solo GE-HM 18/38 GE-LC 36/35 PICOBELLA TC-AG 18/115 TC-MG 18 Li TE-AG 18/115 TE-AP 18 Li PXC Solo TE-CD 18 Li E Solo TE-CD 18-2 Li-i Solo TE-HD 18 Li Solo TE-MS 18/210 Li Solo TE-RS 18 Li Solo TE-VC 18/10 Agillo 18/200 Agillo 36/255 Aquinna 18/30 Aquinna 36/30 Aquinna 36/38 F Arcurra 18/55 Axxio 18/115 Q Axxio 18/125 Axxio 18/125 Q Axxio 18/150 Axxio 36/230 Q Brillianto CE-AP 18 CE-CB 18/254 CE-CC 18 CE-CP 18/180 Li Fixetto 18/50 N Fortexxa 18/20 Fortexxa 18/30 Freelexo 300 Freelexo 350 Freelexo 400 BT Freelexo 450 BT Freelexo 500 Freelexo 600 BT Freelexo 750 Freelexo 800 Freelexo 900 Freelexo 1200 LCD Freelexo Cam 350 Freelexo Cam 500 Freelexo Kit 600 Freelexo Smart 750 GC-CC 18 GC-CG 18 GC-CH 1846 GC-CH 1855 GC-CT 18/24 GC-HH 18/45 GC-LC 18/20 GC-SC 18/28 GC-SC 36/31 GE-CF 18/2200 GE-CG 18/100 GE-CH 18/60 GE-CH 36/50 GE-CH 36/61 GE-CL 36 GE-CL 36/230 GE-CM 18/32 GE-CM 18/33 GE-CM 36/33 GE-CM 36/34-1 GE-CM 36/36 GE-CM 36/37 GE-CM 36/43 GE-CM 36/48 GE-CM 43 GE-CR 18/20 GE-CR 30 GE-CS 18 GE-CT 18 GE-CT 18/28 GE-CT 18/30 GE-DP 18/25 GE-GS 18 Li GE-HC 18 Li GE-HG 18/370 GE-HH 18/45 GE-LC 18 GE-LC 18/25 GE-LE 18/190 GE-LM 36/4in1 GE-LS 18 GE-PB 36/18 Li GE-PP 18 RB GE-SA 36/35 GE-SC 35/1 GE-SC 36/35 GE-SP 18 GE-ST 36/40 GE-UB 18/250 GE-US 18 GE-WS 18/10 GE-WS 18/35 GE-WS 18/75 GE-WS 18/150 GP-CM 36/41 LI GP-CM 36/47 S HW Li GP-EA 18/150 Li GP-LB 18/200 Li GK GP-LB 18/210 Li GP-LC 36/35 Ge-GS 18/150 Herocco 18/20 Herocco 36/28 Impaxxo 18/230 Impaxxo 18/400 Pressito Pressito 18/21 Rasarro 36/34 Rasarro 36/36 Rasarro 36/38 Rasarro 36/40 Rasarro 36/42 TC-CD 18/35 TC-JS 18 TC-MG 18 TC-OS 18/187 TC-RA 18 TC-SY 18/60 TE-AC 36/6/8 TE-AC 36/8 TE-AP 18/22 TE-AP 18/26 TE-AV 18/15 TE-BJ 18 TE-CB 18/180 TE-CD 18 TE-CD 18/2 TE-CD 18/45 TE-CD 18/48 TE-CG 18 TE-CI 18/1 TE-CL 18/2000 TE-CL 18/2500 TE-CN 18 TE-CS 18/89 TE-CS 18/150 TE-CS 18/165 TE-DA 18/760 TE-DY 18 TE-HA 18 TE-HD 18 Li TE-HD 18/12 TE-HV 18/06 TE-JS 18/80 TE-MB 18/127 TE-MS 18/210 TE-MX 18 TE-OS 18/150 TE-OS 18/230 TE-PL 18/82 TE-RS 18 TE-SG 18/10 TE-SM 36/210 TE-SV 18Li TE-SW 18/610 TE-TC 18/115 TE-TK 18 Li Kit TE-TS 36/210 TE-VC 18 Li TE-VC 18/10 Li TE-VC 36/25 TE-VC 36/30 Li-S TP-AG 18/125 CE Q Li TP-AP 18/28 TP-BS 18/357 TP-CD 18 Li Brushless TP-CI 18 Li BL TP-CQ 18 Li TP-CS 18/190 Li BL TP-DW 18/225 TP-HD 18/26 Li BL TP-MX 18-2 Li TP-RO 18 SET TP-VC 36/30 S Auto Varrito Venturro Venturro 18/210 Expert FREELEXO CAM Plus 600

Replaces Part Numbers

45.114.36 511395 4511396 4511437 4511501 4511502 4511516 4511553 4511600

Technical Specifications

Voltage18V
Amp Hours2000mAh
Capacity2000mAh
Rate36Wh
Net Weight370g /13.05 oz
Gross Weight550g /19.40 oz
Approximate Weight550g /19.40 oz
Dimension 121.00 x 77.30 x 48.30mm

Product Highlights

  • Brand: Einhell
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Einhell drill cuts out the instant I pull the trigger hard — is the battery dying or is something else going on?

That's a BMS overcurrent trip, not cell failure. The motor-start inrush spike on a loaded drill can hit 20–30A for a fraction of a second, and a new or recently stored pack has conservative trip thresholds. Run two or three light-load cycles first — drilling into soft timber, not driving lag screws — and the BMS recalibrates its overcurrent window. If it still cuts out after that, check the contact rails on both the battery and the tool for corrosion or debris reducing conductivity.

The tool feels underpowered and bogs down halfway through a cut — is this a battery or tool problem?

This is voltage sag, and the first place to check is contact resistance. Dirty or slightly corroded slide-in contacts add resistance to the current path, which drops the voltage the motor actually sees under load. Remove the pack, clean both the battery terminals and the tool's contact rails with a dry cloth or fine abrasive, then reinsert firmly. If the problem persists, charge the pack to full and check the resting voltage with a multimeter — a healthy 18V pack should sit at 20–21V fully charged.

The battery works fine in summer but the tool feels sluggish and weak on cold mornings — what's happening?

Li-ion internal resistance rises sharply below 5°C — at freezing temperatures, a 2000mAh pack can deliver noticeably less current before the voltage rail sags under load. The cells aren't damaged; they're just temporarily less conductive. Warm the battery to room temperature before use — 15 minutes indoors is enough. Cold storage doesn't degrade the cells long-term, but repeated hard use while cold accelerates capacity fade, so avoid heavy drilling at full torque until the pack has warmed up.

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